what is lambda used for in real code?
steven.bethard at gmail.com
Fri Dec 31 23:36:25 CET 2004
Adam DePrince wrote:
> Lets not forget the "real reason" for lambda ... the elegance of
> orthogonality. Why treat functions differently than any other object?
> We can operate on every other class without having to involve the
> namespace, why should functions be any different?
Yup. I think in most of the examples that I didn't know how to rewrite,
this was basically the issue. On the other hand, I do think that
lambdas get overused, as indicated by the number of examples I *was*
able to rewrite.
Still, I have to admit that in some cases (especially those involving
reduce), I wish the coder had named the function -- it would have given
me a little bit more documentation as to what the code was trying to do.
On the other hand, in other cases, like when a function is a keyword
argument to another function (e.g. inspect.py's "def formatargspec..."
example) using a def statement and naming the function would be redundant.
 Note that this isn't entirely fair to the examples, some of which
were written before list comprehensions, generator expressions and
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